"Mon, 02 Feb 1970 01:00:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
19700202
Only TIME
01:00:57
General datetime
1970-02-02 01:00:57Z
For Database
1970-02-02 01:00:57
For HTTP1.1
Mon, 02 Feb 1970 01:00:57 GMT